feat(main): Bootstrap project entrypoint

This doesn't really do anything yet.

src/main.rs

@@ -0,0 +1,26 @@
+#[macro_use]
+extern crate diesel;
+extern crate chrono;
+
+pub mod schema;
+pub mod models;
+
+use diesel::prelude::*;
+use diesel::pg::PgConnection;
+use std::env;
+
+fn connect_db() -> PgConnection {
+    let db_url = env::var("DATABASE_URL")
+        .expect("DATABASE_URL must be set");
+
+    PgConnection::establish(&db_url)
+        .expect(&format!("Error connecting to {}", db_url))
+}
+
+fn main() {
+    use schema::threads::dsl::*;
+    use schema::posts::dsl::*;
+
+    let conn = connect_db();
+    let threads = threads.
+}